IB Biology SL 1.2.6 Roles in translation Question Bank
Practise IB Biology SL 1.2.6 by explaining the roles of ribosomes, tRNA and RNA during translation.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Practise IB Biology SL 1.2.6 by explaining the roles of ribosomes, tRNA and RNA during translation.
The diagram represents the synthesis of proteins in the cytoplasm of a cell.

Identify X and Y.
X:
Y:
X=( small subunit of) ribosome;
Y=mRNA / messenger RNA;
Marking guidance:
Do not accept RNA without messenger or
m.